Recognize PEM-encoded DSA private keys.

This change makes |EVP_PKEY_asn1_find_str|, which is used by
|PEM_read_bio_PrivateKey|, recognize "DSA" as well as "EC" and "RSA".

Change-Id: I39cce12f600cec6a71df75312a41f8395429af62
Reviewed-on: https://boringssl-review.googlesource.com/5743
Reviewed-by: Adam Langley <agl@google.com>
1 file changed